[FONT="]The Lumapower LM301 light looks nicely finished, and some will no doubt prefer the clicky to a twisty light like the C-LE, but the Jetbeam C-LE that you already have out performs this light across the board, on both output and runtime.
http://www.lightreviews.info/lp_lm301/review.html
High - 452 Lux / 1 hour 16 minutes
Low - 92 Lux / 6 hours 27 minutes
http://www.lightreviews.info/cle_1_2/review.html
High - 1043 Lux / 1 hour 34 minutes (mine runs 2 hours plus on NiMH)
Med - 341 Lux / 5 hours 34 minutes (mine runs about 6 hours on NiMH)
Low - 87 Lux / 20 Plus Hours (actually rated even higher, he didn't test)
Not knocking anyone's choice, but this isn't even a contest, the only reason that I think the LM301 rated as highly as it did, was based on a 'value' score that showed up because he has the light listed at the incredible (apparently no longer available) price of 20 dollars.
You might want to take a look at the Fenix L1D
http://www.lightreviews.info/fenix_lxd_ce/review_l1d.html
High(Turbo) - 1591 Lux / 1 hour 37 minutes
Med - 792 Lux / 4 hours 26 minutes
Low - 165 Lux / 24 plus hours
Though this isn't the "Twice the output AND more runtime" situation that the C-LE/LM301 was, this light does beat your Jetbeam C-LE by respectable margins on both max output and on the low level output and runtime.
Fenix also has really good build quality, so if you don't mind the fact that the L1D will set you back more than twice what a C-LE does, I think you may want to consider the Fenix L1D.
[/FONT][FONT="]Fact is, you can spend a LOT more money on exotic lights, but it's hard to beat the L1D for raw performance, reliability and build quality.[/FONT]